<template>
  <div>
    <div class="search">
      <input v-model="keyword" type="text" class="search-input" placeholder="输入城市名或拼音">
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li class="search-item border-bottom" 
            v-for="item of list" 
            :key="item.id"
            @click="handleCityClick(item.name)"
        >
          {{item.name}}
        </li>
        <li class="search-item border-bottom" v-show="hasNoData">
          没有找到匹配数据
        </li>
      </ul>
    </div>
  </div>    
</template>

<script>
import Bscroll from 'better-scroll'
import { mapMutations } from 'vuex'
export default {
		name: 'CitySearch',
    props: {
      cities: Object
    },
    data () {
      return {
        keyword: '',
        list: [],
        timer: null
      }
    },
    computed: {
      hasNoData () {
        return !this.list.length
      }
    },
    watch: {
      keyword () {
        if (this.timer) {
          clearTimeout(this.timer)
        }
        if (!this.keyword) {
          this.list = []
          return
        }
        this.timer = setTimeout(() => {
          const result = []
          for (let i in this.cities) {
            this.cities[i].forEach((value) => {
              if (value.spell.indexOf(this.keyword) > -1 || 
                value.name.indexOf(this.keyword) > -1) {
                result.push(value)
              }
            })
          }
          this.list = result
        },100)
      }
    },
    methods: {
      handleCityClick (city) {
        //this.$store.dispatch('changeCity',city)
        //this.$store.commit('changeCity', city)
        this.changeCity(city)
        this.$router.push('/')
      },
      ...mapMutations(['changeCity'])
    },
    mounted () {
      this.scroll = new Bscroll(this.$refs.search)
    }
	}
</script>

<style lang="stylus" scoped>
@import '~styles/varibles.styl'
.search
  height: .72rem
  padding: 0.1rem
  background: $bgColor
  .search-input
     box-sizing: border-box
     width: 100%
     height: .62rem
     padding: 0.1rem
     line-height: .62rem
     text-align: center
     border-radius: .06rem
     color: #666
.search-content
  z-index: 1
  overflow: hidden
  position: absolute
  top: 1.58rem
  left: 0
  right: 0
  bottom: 0
  background: #eee
  .search-item
    line-height: .62rem
    padding-left: .2rem
    background: #fff
    color: #666
</style>